Re: 2.6.18-rc5-mm1

Bjorn Helgaas
2006-09-05T16:16:40Z

On Friday 01 September 2006 10:40, Maciej Rutecki wrote:
> ACPI error (similar like in 2.6.18-rc4-mm3):
>
> [ 23.790140] ACPI Error (utglobal-0125): Unknown exception code:
> 0xFFFFFFEA [20060707]
> [ 23.790318] [<c0221ba9>] acpi_format_exception+0x9f/0xa9
> [ 23.790445] [<c021edf9>] acpi_ut_status_exit+0x2e/0x56
> [ 23.790554] [<c021b3ac>] acpi_walk_resources+0x103/0x10d
> [ 23.790661] [<c022901c>] acpi_reserve_io_ranges+0x0/0xfc
> [ 23.790774] [<c022900f>] acpi_motherboard_add+0x1f/0x2c
> [ 23.790880] [<c0228154>] acpi_bus_driver_init+0x2c/0x78
> [ 23.790987] [<c02285b0>] acpi_bus_register_driver+0x60/0xb1
> [ 23.791094] [<c038a8da>] acpi_motherboard_init+0xa/0xf5
> [ 23.791205] [<c01002b0>] init+0x70/0x280
> [ 23.791309] [<c0102db2>] ret_from_fork+0x6/0x14
> [ 23.791420] [<c0100240>] init+0x0/0x280
> [ 23.791520] [<c0100240>] init+0x0/0x280
> [ 23.791621] [<c0103997>] kernel_thread_helper+0x7/0x10

This ACPI "unknown exception code" problem is the same one reported here:
http://www.mail-archive.com/linux-acpi%40vger.kernel.org/msg02873.html

Basically, we just need to revert this:
http://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc4/2.6.18-rc4-mm3/broken-out/hot-add-mem-x86_64-acpi-motherboard-fix.patch

The above patch happened to fix a hot-add memory problem, but it was
the wrong fix, and we're working out a better one.